#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int i = 3, j;
	j = i++;
	printf("i=%d,j=%d\n",i++,j);
	j = ++i;
	printf("i=%d,j=%d\n",++i,j);
	j = --i;
	printf("i=%d,j=%d\n",i--, j);
	j = i--;
	printf("i=%d,j=%d\n",--i,j);
}